a Delphini

Alpha Delphini is Sualocin, which is ‘Nicolaus’ backwards, the Latinized name of Niccolo Cacciatore, assistant to the noted Italian astronomer Giuseppe Piazzi. Also, beta Delphini is Rotanev, backwards for ‘Venator’, apparently the same gentleman's last name Latinized.

At a visual magnitude of 3.86, alpha is the brightest star of the constellation. However many others are very nearly the same brightness.

To find alpha (and the whole constellation for that matter) from Altair (alpha Aquilae) move two binocular fields to the northeast: binoculars.

The constellation has two superb binaries, but only suitable for telescopes.
     Gamma Delphini has a subtle colour change: 4.4, 5.3, PA 268º and a separation of 10", while Struve 2725 is even more pleasing, a delicate sytem of two eighth-magnitudes stars, again too close for binoculars.


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